现象描述：
如果报错：
ORA-01194: file 1 needs more recovery to be consistent
ORA-01110: data file 1: ‘/u01/oradata/orcl/system01.dbf’
处理方法
跳过日志检查：
alter system set “_allow_resetlogs_corruption”=true scope=spfile;
recover database using backup controlfile until cancel;
recover database until cancel;